.header {
    position: static;
    background: #fff;
}

.logo{
    border: 1px solid #000;
}

.header-logo h2 {
    color: #000;
}

.header-search .iconfont {
    color: #000;
}

.header-time {
    color: #000;
}

.headerNav a {
    color: #000;
}